Continuous Flow Injection Analysis for The Photometric Determination of Metformin Drug Via The Release of Copper(II) ion from Charged Gel Bead Crystal. Iraqi Journal of Science, [S. l.], v. 54, n. 1, p. 17–26, 2023. Disponível em: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/12014.. Acesso em: 20 may. 2024.